In contrast the same person at rest would be pumping only 4 or 5 litres of blood a minute.相比之下, 同一个人在不动时心脏每分钟输送的血液只有四五升。

'He's at rest,' I said, and burst out crying.“他去了。”我说着, 突然就哭了起来。

like a child at rest像一个睡着的孩子

I wasn't fully asleep because my mind was never at rest.我没有完全睡着, 因为我的心绪一直没能平静。